From 509ad510498f6d0654989a9e27b7e90d6cdc665c Mon Sep 17 00:00:00 2001
From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Tue, 7 Dec 2021 19:27:17 +0100
Subject: [PATCH] wip #4947 @0.5

---
 src/Jobs/ProcessPage.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/Jobs/ProcessPage.php b/src/Jobs/ProcessPage.php
index 2c3ea35..3ab575a 100644
--- a/src/Jobs/ProcessPage.php
+++ b/src/Jobs/ProcessPage.php
@@ -102,7 +102,21 @@ class ProcessPage implements ShouldQueue
 
     public function splitDoc()
     {
+
+
+        $lock = $this->getPDFInput() . '.lock';
+        $returnAfterSleep = false;
+
+        while (file_exists($lock)) {
+            $returnAfterSleep;
+            sleep(5);
+        }
+        if ($returnAfterSleep) {
+            return;
+        }
+
         start_measure('Split PDF');
+        touch($lock);
 
         Files::mkdir($this->getOut() . '/pdf');
         $pdftk = new CommandLine('pdftk');
@@ -128,6 +142,7 @@ class ProcessPage implements ShouldQueue
                 }
             }
         }
+        unlink($lock);
         stop_measure('Split PDF');
     }
 
-- 
2.39.5